Revolving suction-roll.



P. RICHARD. REvoLvme sucnoN aou.

AFPLICATION FILED MAR. Il. 1916.

Patented Jul-y 18, 1916.

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THILIPVRICHARD. or WEST FITcHBUHe,` MASSACHUSETTS.

REVOLVING SUCTION-ROLL.

To'aZZ whom t may concern Be it known that I, PHILIP RICHARD, a subjectof George VII, King of England, residingv at Vest Fitchburg, in the county of l/Vorcester and VState of Massachusetts, have invented certain new and useful Improvements in Revolving Suction-Rolls, of which the following is a specification, referencebeinghad to the accompanying drawings.

ments in revolving suction rolls and has relation more particularly to a device of this general character especially designed and adapted for use in connection with paper making machinery for extracting water or moisture from the paper pulp while it is forming on an interstitial or porous conveyer, such as the making wire or felt, and it is an object of the invention to provide a novel and improved device of this general character having within the revolving roll a stationary suction pan in which is mounted adjustable heads whereby the heads may be positioned relative to the width of the paper pulp passing over or partly around the roll.

The invention consists in the details of construction and in the combination and arrangement of the several parts of my improved roll whereby certain important advantages are attained and the device is rendered simpler, less expensive and otherwise more convenient and advantageous for use, all as will be hereinafter more fully set forth.

The novel features of the invention will be hereinafter denitely claimed.

In order that my invention may be the better understood, I will now proceed to describe the same -with reference to the accompanying drawings, wherein- Figure 1 is a longitudinal sectional view taken through a roll constructed in accordance with an embodiment of my invention with ortions shown in elevation; Fig. 2 is a sectional view taken substantially on the line 2-'-2 0f Fig. 1; Fig. 3 is a sectional view taken substantially on the line 3-3 of Fig. 1; Fig. 4 is an enlarged longitudinal sectional view taken through the intermediate portion of the roll; and Fig. 5 is a view in plan of the suction pan as herein included.

As disclosed in the accompanying drawings, 1 denotes a fenestrated or perforated This invention relates tocertain improve-v Specication of Letters Patent. Patented July 18, 1916, Application mea March 11, 1916. seriaiNo. 83,615.

roll of predetermined dimensionsl and preferably formed of brass and ,having its opposite ends provided with the inwardly disposed perforate lugs 2 to afford connection with the headsB, said heads 3 having at their centers the tubular trunnions 4 adapted to jbe rotatably support-ed in proper position :upon'the frame of a paper making machine, and one of the trunnions 4 is vprovided with means herein shown asghhgear wheel 5, whereby the requisite rotation may be imparted to the roll 1.

Disposed longitudinally through the roll 1 and the trunnions 4 is the suction pipe 6 leading from a suitable suction pump and having its` free end closed. The suction pipe 6 is stationary and the roll l rotates therearound. The outer ends of the trunnions 4 are in contact with the pipe 6 and have coaoting therewith the packing nuts 7 for a purpose which is believed to be selfevident.

To those skilled in the art it will be selfevident that the pulp conveyer or web passes over or partly around the roll 1 and travels therewith, whereby wear upon the conveyer is eliminated, and in vorder to eXtrac-t water or moisture from the paper pulp, the suction pipe 6 within the roll 1 is provided with a plurality of perforations 8 in communication with the suction pan 9, said pan 9 being of a length substantially equal to the interior length of the roll 1 and has its margins provided with the compressible strips 10 preferably of rubber whereby a substantially hermetic contact may be had with the inner surface of the roll 1, whereby .the suction is combined within a predetermined area.

The suction pan 9 has mounted therein for sliding movement the adjustable heads 11, the outer margins of which being also yieldablein order to afford a requisitecontact with the inner Surface of the roll 1, and each of said heads 11 has an extension 12 extending through a longitudinally disposed slot 14 produced in the suction pipe 6 at a point adjacent an end of the pan 9, and connected to said extension. 12 is the rod 15 extending eXteriorly of the suction pipe 6 and whereby it will be perceived that the head 11 may be adjusted longitudinally,

of the pan 9 in accordance with the width of the paper pulp passing over or partly around the roll 1.

From the foregoing description, it is thought to be obvious that a roll constructed in accordance with my invention is of an eX- tremely simple and comparatively inexpensive nature and is particularlywell adapted for use by reason of the convenience and facility with which it may be assembled, and it will also be obvious that my invention is 'susceptible of some change and modification without material departure from the principles and spirit thereof and for this reason I do not wish to be imderstood as limiting myself to the precise arrangement and formation of the several parts herein shown in carrying out my invention in practice.

I claim: y

In combination with a stationary Suction pipe, a perforate roll surrounding said pipe Copiesof this patent may be obtained for and provided with inwardly disposed lugs, heads for the roll secured to the lugs, each of said heads being provided with an outwardly extending trunnion, the outer end portion of which being in contact with the pipe7 a packing nut coacting with the outer end portion of the trunnion, one of said trunnions being provided with operating means whereby the roll may be rotated around the pipe.

In testimony whereof I hereunto affix my signature in the presence of two Witnesses.

PHILIP RICHARD.

Witnesses CHARLES W. FITZGERALD,A EDWARD RICHARD.

:tive cents each, by addressing the Commissioner of Patents, Washington, D. C. 

